26408283742806 has 128 divisors (see below), whose sum is σ = 64008055587840. Its totient is φ = 7095453811200.

The previous prime is 26408283742721. The next prime is 26408283742877. The reversal of 26408283742806 is 60824738280462.

It is a self number, because there is not a number n which added to its sum of digits gives 26408283742806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 77971980 + ... + 78309936.

It is an arithmetic number, because the mean of its divisors is an integer number (500062934280).

Almost surely, 2^{26408283742806} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26408283742806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32004027793920).

26408283742806 is an abundant number, since it is smaller than the sum of its proper divisors (37599771845034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26408283742806 is a wasteful number, since it uses less digits than its factorization.

26408283742806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338710.

The product of its (nonzero) digits is 49545216, while the sum is 60.

The spelling of 26408283742806 in words is "twenty-six trillion, four hundred eight billion, two hundred eighty-three million, seven hundred forty-two thousand, eight hundred six".